A usable fraction is a fraction you can use to measure with (i.e., 1/2, 1/4, 1/8, 1/16 inch). You measure with fractions of an inch. However, your calculator works in decimals of an inch.

Fractions, decimals and percentages all have equivalents of each other, so it is quite easy to compare and order them! All you need to do is convert them into the same form. Often, it is easiest ...